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- On the basis of the hydrologic data from 1981 to 2001, the evolution of river bed at Lanzhou section of the Yellow River was analyzed. 基于1981-2001年水文数据,分析了黄河兰州段河床演变规律;
- Analvsis on evolution of river bed of Zhenjiang- Yangzhou stretch with help of GIS GIS支持下长江镇扬河段河床演变分析
- The evolution of river bed and the scheme of water way regulation for tunaozi shoal on the Sichuan 川江土脑子滩河床演变及整治方案
- The Impact of Flood Control Works of the Longchuan River on Evolution of River Bed 龙川江防洪工程建设对河床演变的影响
- An Analytical Study on the Evolution of River Bed in Chouyanji Reach of the Upper Yangtze River 川江臭盐碛河段河床演变分析研究
- evolution of river bed 河床演变
- Based on model test and the scene investigation, the flow structure around submerged spur dikes and evolution characteristic of river bed are researched . 根据水工模型试验研究和工程现场考察,对漫水丁坝附近的水流结构,河床变形的特点进行了分析和研究;
- The extreme effects of sand mining on local deformation of riverbed and evolution of river stretch in typical river sections such as straight river section, river bend and river fork are experimentally studied in micro-scale loose bed hydraulic model. 摘要采用微尺度动床河工模型试验的方法研究了在顺直、弯道与分汊等典型河道不同部位进行大规模采砂对河床局部变形及对河段变形的极限影响。
- The landform evolution of Xianyang since the end of Qin Dynasty contains two aspects,the northward moving of the Weihe River bed and the changing of the edge slope of Xianyang tableland. 秦末以来,秦都咸阳地貌演变包括渭河河道北移和咸阳原边坡地貌变化两个方面。
- The dam is RCC dam.The pouring layers are slanting in the RCC construction of river bed dam section. 拦河坝为全断面碾压混凝土,河床坝段的碾压混凝土采用斜层平推铺筑法施工;
- The space program is the evolution of years of research. 太空计划是多年研究的发展结果。
- The orthogonal analyses show that level length in bucket and the anti-erosion power of river bed are important factors for controlling scour hole depth. 文中对冲刷坑水深计算式采用正交分析计算表明,戽内水平长度与河床抗冲能力是控制冲刷坑水深的主要因素,在应用时需过细论证,才可获得满意的防冲效果。
- A two-dimensional sediment mathematical model is applied to the calculation of river bed deformation of sluicing silt in Qingyanzi reach after three Gorges reservoir is built. 本文应用平面二维泥沙数学模型对三峡工程青岩子河段建库后的河床冲淤变化进行了初步计算。
- Do you know about the evolution of a seed into a plant? 你知道从种子发展成为植物的过程吗?
- The evolution of heat from the sun is inestimable. 从太阳中放射出的热是无法估计的。
- We studied the evolution of flowers from seeds and buds. 我们研究从种籽和花蕾到花的成长过程。
- It is believed that the great turbulent energy at low Froude numbers acting on the downstream river bed is the main cause of the erosion The length of river bed to be protected downstream of a stilling basin is recommended. 认为较大紊动能的频繁作用是造成下游河床冲刷破坏的主要因素,并提出消力池下游最需要保护的河段长度。
- Risk Assessment of River Bed Evolution in Bridge Engineering 桥梁工程中河床演变的风险评估
- Evolution of zeolite synthesis was reviewed. 综述了沸石分子筛的合成和最新进展。
- He is absorbed in the evolution of the story. 他被故事情节的发展吸引了。